MSDN talks about Fitt's Law for the web. To bad M$oft didn't take this to heart when designing the startmenu, taskbar, and window topbar elements. (via TR)
Much was made of the lack of fixations on graphic elements, with users found to focus in on page text immediately. Users showed the long understood predilection for scanning article text and a suprising prevalence of banner fixations albeit at only 1 second in duration. There's a mailing list to get more data as they analyze the almost 70000 eye fixations (sample size 67 people, with many hours of user directed surfing studied).